第5腰椎横突肥大综合征的解剖学研究

Anatomic study of hypertrophy of transverse process of the 5th lumber vertebra

目的 为第5腰椎横突肥大综合征提供解剖学基础.方法 用第5腰椎、骶骨各390块,测量第5腰椎横突、椎间孔的上下径和前后径.结果 第5腰椎横突正常上下径为13.3±2.6mm,前后径12.4±2.5mm正常椎间孔前后、上下径.第5腰椎肥大的横突上下径为20.9±2.4mm,前后径30.9±3.3mm.第5腰椎横突肥大L5～S1椎间孔的前孔,左侧:上下径11.5±4.3mm,前后径10.5±2.7mm;右侧:上下径10.2±4.5mm,前后径9.6±3.0mm.结论 第5腰椎横突肥大,可引起L5～S1椎间孔的前孔狭窄,累及第5腰神经,为腰腿痛的原因之一.

Objective To supply anatomic morphometry for the hypertrophy of the transverse process of L_5. Methods The vertical height and the sagittal width of the 5th lumber intervertebral foramen are measured on 780 pieces of 5th lumer vertebra and sacrums. Results The normal vertical height ( x ±s ) of the 5th lumber is 13.3 ±2.6mm; the sagittal width 12.4 ±2.5 mm.The height of the hypertrophic transverse process of L_5 is 20.9 ±2.4 mm; the width 30.9 ±.3 mm.The height of left intervertebral foramen is 14.5 ±4.3 mm, the width 10.5 ±.7 mm; the height of the right intervertebral foramen is 10.2 ±.5 mm, the width 9.6 ±3.0 mm.Conclusion The hypertrophy of the transverse process of if can lead to the stenosis of anterior part of interertebral foramen, which may oppress the anterior ramus of the 5th lumber nerve.